So for this one all you have to do is use the formular 
Z*k=x
30k=8
K=4/15
Then when x=4
4/15x=4
So x=15
        
             
        
        
        
The hanger diagram ideally should be in balance with all the shapes hung on it.
On the left side, it shows that the circles are 9 grams and the squares are 12 grams. The triangles are 2t grams. Therefore, on the left side we have,
9 + 12 + 2t
On the right side, it shows the circles are 6 grams and the squares are 6 grams, while the triangles are 5t grams. Therefore on the right side we have
6 + 6 + 5t.
For the hanger to be in balance, we should have 
 
 
        
             
        
        
        
Answer:
5.36,275,336,535
Step-by-step explanation:
 
        
             
        
        
        
Answer:
95/6
3/5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
This problem is just really long- it's trying to confuse you with complicated wording. Here's it demystified:
a) 
t = 0 degrees Celsius
d = 1500 meters
Find the temperature, T.
b)
d = 300 meters
T = 26 degrees Celsius
Find the ground temperature, t.
NOTE: The temperatures are different! T is the final temperature and t is the ground temperature.